Sprinkle a little luck on your Sugar Cookies. Begin by creating a clover stencil: Draw your own or use our template, and cut out the shapes. Next, sift together 1/3 cup confectioners' sugar and 1 teaspoon green powdered food coloring. Position stencil over unbaked sugar-cookie dough as shown below, and sprinkle green powder over stencil, using a small sieve. Remove stencil, chill dough for 15 minutes, and bake.